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Finding the Fourth Proportional to 5,281.91, 7,289.05 and 3,393.51

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Solution

The fourth proportional to 5,281.91, 7,289.05 and 3,393.51 is: 4,683.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.91 : 7,289.05 = 3,393.51 : x
  2. Step 2: Convert to fraction form
    5,281.91/7,289.05 = 3,393.51/x
  3. Step 3: Cross multiply
    5,281.91x = 7,289.05 × 3,393.51
  4. Step 4: Simplify right side
    5,281.91x = 24,735,419.14
  5. Step 5: Solve for x
    x = 24,735,419.14/5,281.91
  6. Step 6: Final answer
    x = 4,683.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.